Api Endpoint

fetchdelta.com

FetchDelta: compare one public web page with its previous stored snapshot. Returns added/removed lines and change previews. The first call creates a baseline; later calls share that URL baseline across buyers. Use page-watch-30d for a private daily watch.

Open interactive test console

Offering

Provider: fetchdelta.com
Method: GET
Offering type: Api Endpoint
Transport type: http
Category: Security
Delivery: Not provided
Pricing model: Not provided
x402 version: 2

Endpoint context

URL: https://fetchdelta.com/api/diff
MIME type: application/json
First seen: 2026-10-16T01:50:53.972Z
Last seen: 2026-11-01T15:36:15.245Z
Tags: None supplied

Website

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1: 0.004 USDC
Atomic price: 4000 · Network: eip155:8453 · Asset: USDC · Scheme: exact

Raw x402 terms

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "4000",
    "payTo": "0x788aa4A08da3025c5b5a68BE80752CA244E73158"
  }
]

Observed health

Status: Healthy
Latest latency: 204 ms
Average latency: 1430 ms
HTTP status: 402
Last checked: 2026-11-01T15:36:15.241Z
Reachability: 100% over 14 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string",
      "const": "http"
    },
    "method": {
      "type": "string",
      "enum": [
        "GET"
      ]
    },
    "queryParams": {
      "type": "object",
      "properties": {
        "url": {
          "type": "string",
          "format": "uri",
          "description": "Public HTTP(S) page URL. No credentials, private hosts or nonstandard ports. JavaScript is not executed."
        }
      },
      "required": [
        "url"
      ]
    }
  },
  "required": [
    "type",
    "method"
  ],
  "additionalProperties": false
}

Output schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "input": {
      "additionalProperties": false,
      "properties": {
        "method": {
          "enum": [
            "GET"
          ],
          "type": "string"
        },
        "queryParams": {
          "properties": {
            "url": {
              "description": "Public HTTP(S) page URL. No credentials, private hosts or nonstandard ports. JavaScript is not executed.",
              "format": "uri",
              "type": "string"
            }
          },
          "required": [
            "url"
          ],
          "type": "object"
        },
        "type": {
          "const": "http",
          "type": "string"
        }
      },
      "required": [
        "type",
        "method"
      ],
      "type": "object"
    },
    "output": {
      "properties": {
        "example": {
          "properties": {
            "addedLines": {
              "minimum": 0,
              "type": "integer"
            },
            "baselineCreated": {
              "type": "boolean"
            },
            "currentFetchedAt": {
              "format": "date-time",
              "type": "string"
            },
            "hasChanges": {
              "type": "boolean"
            },
            "preview": {
              "items": {
                "properties": {
                  "text": {
                    "type": "string"
                  },
                  "type": {
                    "enum": [
                      "added",
                      "removed"
                    ]
                  }
                },
                "required": [
                  "type",
                  "text"
                ],
                "type": "object"
              },
              "type": "array"
            },
            "previousFetchedAt": {
              "anyOf": [
                {
                  "format": "date-time",
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ]
            },
            "removedLines": {
              "minimum": 0,
              "type": "integer"
            },
            "title": {
              "type": "string"
            },
            "url": {
              "format": "uri",
              "type": "string"
            }
          },
          "required": [
            "url",
            "title",
            "baselineCreated",
            "previousFetchedAt",
            "currentFetchedAt",
            "hasChanges",
            "addedLines",
            "removedLines",
            "preview"
          ],
          "type": "object"
        },
        "type": {
          "type": "string"
        }
      },
      "required": [
        "type"
      ],
      "type": "object"
    }
  },
  "required": [
    "input"
  ],
  "type": "object"
}